<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by AAchick:
Also children under 6, including infants are not allowed in F class on passes. </font>
One more note on this... children under 6 are only accomodated in Y on 2 cabin flights only... for 3 cabin flights (operated as such, not J sold as Y), the minimum age to upgrade to J or F is 8.